What size is the logo you want to upload? When i made my logo, i did it specifically in 180x32 .

It definitely is. You have a limited amount of space, and if you size of the logo is too big, it will get downscaled quite hard. Could you upload the image and post it here?

The ideal size of the logo is 180x32
Try to change yours to reach this size. My suggestion would be to make a single line. I don't exactly know what it does represent but I think you'll have to tweak that anyway.

I agree with Gyoo on the idea to put everything into a single line. I resized your image, but as you can see, it is quite squished: